Welcome to the spectral reflectance and fluorescence index! Presented here are data that were collected during an MIT Sea Grant project. The goal of
this project was to make spectral reflectance a reliable method of identifying Didemnum sp..

Each link will direct you to a space delimited ascii file containing wavelength numbers in the first row and percent reflectance or fluorescence data
in the following rows. Reflectance data are divided into three main categories: Ambient, Illuminated, and DiveSpec. Ambient and Illuminated are
in situ reflectance measurements using a Satlantic HyperOCR radiometer. DiveSpec files contain reflectance measurements that were taken using the
DiveSpec, a self-contained submersible radiometer and fluorometer. DiveSpec data were collected both in the lab and in situ.

All reflectance data have been referenced to a 99% reflectance standard and therefore all reflectance data are in percent reflectance. Fluorescence data
are in absolute units and the spike seen from about 400-500nm is blue light produced by the DiveSpec. Ambient and Illuminated files contain multiple
reflectance spectra, DiveSpec data contain one.